ES238862A1 - Production of vinyl chloride - Google Patents
Production of vinyl chlorideInfo
- Publication number
- ES238862A1 ES238862A1 ES0238862A ES238862A ES238862A1 ES 238862 A1 ES238862 A1 ES 238862A1 ES 0238862 A ES0238862 A ES 0238862A ES 238862 A ES238862 A ES 238862A ES 238862 A1 ES238862 A1 ES 238862A1
- Authority
- ES
- Spain
- Prior art keywords
- dichlorethane
- vinyl chloride
- carbon
- free
- active carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Vinyl chloride is prepared by thermal decomposition of dichlorethane in the vapour phase, the decomposition being carried out in the presence of dry ash-free carbon obtained by washing active carbon firstly with 2N nitric acid at 50-75 DEG C., and then with water, and thereafter drying the carbon. The carbon so obtained is free from metallic salts, e.g. iron salts, which catalyse the formation of undesired by-products such as tar. In an example, 1,2-dichlorethane vapours, at a gauge pressure of 8 atm., are passed through a stainless steel tube containing ash-free active carbon heated to a temperature of 400 DEG C. The condensed reaction products are subjected to fractional distillation to separate pure vinyl chloride from untransformed dichlorethane. The latter is recycled to the pyrolysis zone. A yield of 99% of vinyl chloride is obtained with a conversion rate of 65 to 70% per pass. The pyrolysis of 1,1-dichlorethane is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB38567/56A GB823285A (en) | 1956-12-18 | 1956-12-18 | Improvements in or relating to the production of vinyl chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES238862A1 true ES238862A1 (en) | 1958-05-01 |
Family
ID=10404316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0238862A Expired ES238862A1 (en) | 1956-12-18 | 1957-11-29 | Production of vinyl chloride |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US2981764A (en) |
| BE (1) | BE563247A (en) |
| CH (1) | CH367821A (en) |
| DE (1) | DE1095269B (en) |
| ES (1) | ES238862A1 (en) |
| FR (1) | FR1186716A (en) |
| GB (1) | GB823285A (en) |
| NL (2) | NL222955A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3290399A (en) * | 1961-05-05 | 1966-12-06 | Belge Produits Chimiques Sa | Process for preparing vinyl chloride |
| NL292613A (en) * | 1962-05-17 | |||
| US4665243A (en) * | 1982-12-08 | 1987-05-12 | Stauffer Chemical Company | Process for preparing vinyl chloride monomer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1803943A (en) * | 1927-11-11 | 1931-05-05 | Michigan State Board Of Agricu | Process for the production of ash-free adsorbent carbon |
| US2300600A (en) * | 1939-07-07 | 1942-11-03 | West Virginia Pulp & Paper Co | Method of activating carbon |
| GB605606A (en) * | 1943-03-01 | 1948-07-27 | Bataafsche Petroleum | A process for the manufacture of polymerisation products from vinyl chloride |
| DE857958C (en) * | 1948-04-21 | 1952-12-04 | Uddeholms Ab | Process for the production of chloroethylenes together with hydrogen chloride by pyrolysis of the corresponding chloroethanes |
| BE524000A (en) * | 1953-11-03 | |||
| US2912470A (en) * | 1956-01-04 | 1959-11-10 | Detrex Chem Ind | Method of dehydrohalogenating halogenated hydrocarbons |
-
0
- NL NL96721D patent/NL96721C/xx active
- BE BE563247D patent/BE563247A/xx unknown
- NL NL222955D patent/NL222955A/xx unknown
-
1956
- 1956-12-18 GB GB38567/56A patent/GB823285A/en not_active Expired
-
1957
- 1957-11-25 FR FR1186716D patent/FR1186716A/en not_active Expired
- 1957-11-29 DE DES56083A patent/DE1095269B/en active Pending
- 1957-11-29 ES ES0238862A patent/ES238862A1/en not_active Expired
- 1957-12-03 CH CH5333857A patent/CH367821A/en unknown
- 1957-12-11 US US701964A patent/US2981764A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE563247A (en) | |
| DE1095269B (en) | 1960-12-22 |
| GB823285A (en) | 1959-11-11 |
| CH367821A (en) | 1963-03-15 |
| NL96721C (en) | |
| FR1186716A (en) | 1959-08-31 |
| US2981764A (en) | 1961-04-25 |
| NL222955A (en) |
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